Event objects are left in the global window object.

事件对象留在全局的window对象中。

youdao

When the browser calls them, the this variable points at the global window object.

当浏览器调用它们时，this变量指向全局的window对象。

youdao

When the browser calls them, the this variable points at the global window object.

当浏览器调用它们时，this变量指向全局的window对象。

youdao